Hoffman's longtime partner Mimi O'Donnell, who reportedly didn't live together with the actor when he died, was seen at the service with their children Cooper, 10, Tallulah 7, and Willa, 5. O'Donnell was seen comforting two of their children at one point. His mother Marilyn O'Connor was also there.

A larger public memorial is in the works for later this month. The official cause of death is still unknown as an autopsy on his body was inconclusive, so the New York City medical examiners' office is still awaiting results of additional tests.